Reversible sign with external arrow



FIG. 1 is a front elevational view showing my new design of a reversible sign with external arrow;

FIG. 2 is a right side elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a left side elevational view; and,

FIG. 5 is a top plan view which is a mirror image of the bottom plan view.

The broken line drawings of apertures are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a reversible sign with external arrow, as shown and described. 